When will colleges receive my ACT score?

I am applying to my first choice college for early decision, and the deadline is Nov. 1st. I just finished filling out the online form (I used the one that they supplied on their website, not the common app) and sent it in. A message popped up that my application will not be complete until they receive my ACT score (this was just a routine message, it didn’t say that they hadn’t received MY score yet). I did not have my scores sent to me when I took the test because I wanted to see them first. I had them sent on the 15th to this college, will they arrive in time? How long does it take for a college to receive the scores if you pay to send them after you test? If they don’t receive them by the 1st, will I be too late for early decision? Also, is there a way for me to find out when/if they have received them yet?Thanks everyone, I am really freaking out about this!!